Surgical inhaler.



A. W. BROWNE & P. L. WALLACE.

SURGICAL INHALER.

APPLICATION FILED FEB a. 1913.

Patented Sept. 1, 1914.

3 SHEETSSHBET 1.

INVENTORS ATTORNEY WITNESSES A. W. BROWNE &; P. L. WALLACE.

SURGICAL INHALER.

APPLICATION FILED FEB.8,1913.

Patented Sept. 1, 1914.

3 SHLBETS SHEET 2.

aw WGNKN OZWW A. W. BROWNE & P. L. WALLACE.

SURGICAL INHALER.

APPLICATION FILED FEB; a, 1913. 1,109,318, Patented p 1,1914.

3 SHEETSFSHEET 3.

WITNESSES AIE STATE PATENT oF c @THUR w. nnowun, or Pnnvcn B new Yong, AND rnnpnnicx L. warmer, or,

, ilnnspowivn,

re ivm ie inery. r 'rnjn v'synvanrn.

Specification of Letters latent.

nivivs'yrvenm, AssIGNQRifS $0 5. s. WHITE DENTAL MANU- rmann r ia rvrnmmi a A os R oo .sone eai mantra.

Patented Sept. 1, 1914.

Application fl e February a, rare. Serial no, 7, 11,015.

To all whom it may. concern:

Be it known that we, ARTHUR BROWNE and FREDERICK L. lYALLaon, citizens of the United States, residing, respectively, n Prince Bay, county of Richmond, State of New York, and Lansdowne, county of Delaware, State of Pennsylvania, have invented certain new and useful Improvements in Surgical Inhalers, of which the following is a specification, reference being had to the accompanying drawings.

@ur inventionrelates to improvements in surgical inhalers and it has for its object broadly to provide an improved construc tion of means to regulate and control the administration of anesthetics or a mixture of the same with air to a patient for the purpose of producing anesthesia.

One of the objects of our invention is to provide means as a struction in which, when the valve mechanism is adjusted so as to cause a patient to breathe to and fro to the air, the passage way for the anesthetic from its source of supply to the inhaler is automatically closed.

A further object of our invention is to provide means whereby the person administering the anesthetic may know the position of the valve with relation to the op'en; ing in the valve casing Without the neces-j I edge of the face piece 1, to form the inhaI-' ity of watching the same.

Our invention coniprehends other objects? and purposes which will be referred to and pointed out in the detailed description of the same or will be apparent from such de-' pose of inflating the same. hen the face scription.

One form of a convenient embodiment of our invention is illustrated in the accompanying drawings, but it will be understood that changes in the details of construction may be made within the scope of the claims without departing from the same.

In the accompanying drawings, Figure 1 is a top plan view of a surgical inhaler constructed in accordance with our invention; Fig. 2 is a perspective view of the valve casing of our inhaler, showing the means for moving the valve within the casing and also showing a projecting nipple by means of which the same is connected to the face piece of the inhaler; Fig. 3 is a perspective view of a member adapted to be connected dctachahlv to one end of the valve casing and which is provided with a nipple; Figs.

part of the inhaler con-v 4;, 5, 6 and 7 are perspective views showing detail the devices employed for connectmg the face piece to the nipple projecting from the valve casing; Fig. 8 is a sectional view on the line 8-8 of Fig. 1; Fig. 9 is a perspective view of the valve which operates in the valve casing; Fig. 10 is a central longitudinal sectional View of the valve casing and assembled parts, including the valve which is shown at its extreme left hand position; Fig. 11 is a similar view of the valve casing and assembled parts, the valve being shown in an intermediate position; Fig. 12 is also a similar view of the valve casing and assembled parts, the valve being shown at its extreme right hand position; and Fig. 13 is a transverse sectional view of the valve casing and the valve therein taken on the line 13 13 of Fig. 10.

In said drawings, the face piece 1, which is preferably transparent and consists of any suitable material, preferably glass or celluloid, is provided with a peripheral laterally extending flangeQ, for the con'.-'en ient engagement of the inflatable pneumatic pad 3 having a bead 4 secured upon its upper side, between which and the upper side of the pneumatic pad 3 a groove is formed into which the flange 2 projects, the said pad being thereby secured upon the lower ing mask.

The pad 3 is provided with a tube 5 having a mouth piece 6 by means of which air may be blown into the said pad for the purpiece is in position over the nose and the mouth of the patient, the pad fits closely against the face surrounding these organs and prevents the accidental entry of the surrounding air into said face piece. The valve casing 10 is provided intermediate its ends with a tubular nipple 11 which is adapted to project through an opening 12 in the upper side of the face piece 1, to provide means for securing the latter to the said valve casing.

In connecting the face piece to the nipple we employ a sleeve 13 which is fitted over the lower end of the nipple 11, its upper end being seated against the lower side of a flange 1l upon the said nipple. The sleeve 13 isprovided with a flange 15 against which an annular washer-like member 16 is seated, which member is of truncated cone shape and is located upon the outside of and in contact with the face piece 1, 1v similar member 17 being located upon the inside of the face piece 1 in opposite relation to the member 16. The face piece 1 and the members 16 and 17 are held in position upon the sleeve 13 as illustrated in- Fig. 8 by means oi a threaded nut 18 in engagement with the lower threaded end '01 the sleeve. 13. The said sleeve 13 snugly fits the lower end of the nipple 11 and may be rotated thereon. so as to vary the posltions of the valve casing and the face piece with relation to each otheras may be desired or necessary and as indicated by dash and dot lines in F 1g. 1. The race piece and the valve casing may also be adjusted with re spect to each other by loosening the nut 18 and turning the face piece or the valve casing without disturbing the sleeve 13.

In order that the nut 18 may he readily engaged with the screw-threads upon the end of the sleeve 13 which projects through the opening 12 in the face piece 1, we have heveled the end of the said sleeve asshown at 19 in Fig. 8 and have also omitted the screw threads from the upper end of said nut as indicated at 20, see Fig. 7. The presence of such hovel and the omission of the screw threads cause the nut to be accurately positioned and facilitate the connection of the same.

As already indicated, the sleeve 13 maybe action of hailing water without injury, it

may he otherwise cleansed, as hy the use of an antiseptic wash, as may the pneumatic pad 3'.

lne end of the valve casing is closed as indicated at 25. while at the opposite end we have provided a memher 26 having a relatively long tuhular flange 27 which is adapted to litsnugly. hut movahly inside of the casing I l. The said memher 96 is provided with a shoulder which constitutes a scat for one cud ot the tuhular slide val e 3d. The said naanher Z6 is provided with an angular nipple 31 to. which'oneend ot a tuhe 3:. may he connected for conducting an anesthetic l'rom any suitahle source of supply to the inhaler.

The valve casing 1 1 is n'ovid ed with,

by the: nipple 11.

enter to he breathed by the patient and through which the gases exhaled by the patient may escape from the valve casin The valvecasing is also provided with an opening or port 36 within the region surrounded The tubular slide valve 30 is provided with three openings or ports 37, 38 and'39 which respectively may be made to register or alinc with the opening 36 in the side of: the valve casing, by moving the said valve. One end-of the slide valve is provided with an opening 40 tln-ough'which the air from the openings 35 may pass and through which the, exhaled gases may pass outwardly. The opposite end of the slide valve 30 is-provided with a reduced truncated cone-shaped extension a1 provided with two circular rows of openings +t2 through which the anesthetic which may be supplied to the patient passes.

Located intermediate the opposite ends of the slide valve 30 are the internal flanges and 4:6, constituting valve seats, against which reciprocatory check valves 4-7 and 48, consisting. of fiat plates, are adapted to be seated to close the openings 49 and 50 through the said flanges. The said flanges i5 and 16 are located adjacent to the openings 37 and 38'a'nd the valves 47 and 48 respectivelycoiiperating with said flanges. 45 andv 46 regulate and control the passage of anesthetic, air and gases through said openings; The reciprocating valves 47. and 48 are supported at their lower edges upon a small rod and their movements away from the said seats 45 and 46 are limited by the rods and 61 extending cross-wise of and supported upon the slide valve 30. For

the purpose of introducing the reciprocatory valye's l7 and 48 into the tubular slide valve 30 we provide the slots 62- and 63.

As a means for moving'the slide valve 30 longitudinally in the valve casing 10 we provide a fingerpiece which extends through a slot 71 formed in one side'ot the lvalve casing 10 and which also extends through the valve 30, and has the screw threaded connection with a thickened portion of said valve as indicated at T3 in Fig. '13 of the drawings. slot Tlon one side of its center is out of .aliirementwith the portion thereof on the opposite side of such center so that the said slot is not straight.

The portion of the As a result the shoulders and T5 are formed on the upper and lower edges of the said slot. which shoulders I ha ve. substantially parallel inclined surfaces.

\Yhcn it is. desired to move the valve 30 longitiulinally-in the valve casing 10 the anesthetist takes'hold otthe finger piece 70 and movesthe said valve toward the right or to the left as may he desired. I \Vhen the said-valve 3O i s noved from the position shown in Figs. 2 and 10 toward the right openings or ports 33 through which air may the finger piece 70 strikes the shoulder 74 and in order to continue the movement the said finger piece must be moved downwardly between the shoulders 74: and 75. \Vhe'n the valve is moved in the opposite direction, from the position in which it is shown in Fig. 12, thesaid er piece strikes the shoulder 75. These s oulders are so positioned that when the finger piece is in contact with either of them the opening 38 in the valve 3.0 is in alinement With the; opening 36 in the valve casing. The finger piece 70 and the slot 71 are so related to each other and to the opening 36 in the valve casing 10 and the openings 3.7, 38 and 39 in; the valve 30 that when the said finger piecef occupies a position at the extreme right hand but not suflicient to prevent movement, when desired, of the valve in the valve casing.

In the construction of valve mechanism as illustrated the person administering the anesthetic may so position the same as to cause the patient to breathe air only, which position of the valve is illustrated in Fig. 10. If it be desired to cause the patient to inhale the anesthetic and exhale to the open air the valve 30 is moved to its intermedlate position as illustrated in Fig. 11 with the finger piece 70 in contact With the shoulder 74. In such position it will be observed that the left hand end of the valve 30 has been moved to the right, away from its seat 28; so that the anesthetic may enter the valve chamber through the openings 42 and that the reciprocatory valve 48 is separated from its seat so that the anesthetic may pass through the opening 50 and thence to and through the opening 36 in the valve casing and onto the chamber of the face piece 1, there to be delivered to the patient. When the patient exhales, however, the valve 48 moves to the left'against its seat 46 closing the opening 50 and causing the exhaled gases to travel to the right through the openings 49, 40 and 35'to the open air.

When the valve 30 is in the position illustrated in Fig. 10 the patient inhales and exhales through the air ports 35, and it is in this position of the valve that the inhaling mask is introduced to the patients face. The swond position of the valve 30 as illustrated in Fig. 11 affords inhalation from the source of anesthetic. and exhalation through the air ports the valve in this position tends to expel the air from the patient together with the anesthetic inhaled, as a result anesthesia. may be produced. In the third position of the valve 30 as illustrated in Fig. 12, the patient inhales from and exhales into the anesthetic container and by reason of such action a more prolonged and profound anesthesia may be rapidly and easily established.

Having thus described our invention, we claim:

1. A surgical inhaler having means of connection with a face piece, and com prising a valve casing having an opening through which anesthetics and gases may pass to and from the face piece, a slide valve having a plurality of openings, any one of which may be moved into alinernent with the opening in the valve casing, and means for indicating which of the said openings in the said valve is in alinement with the open ing in the valve casing, and for registering the intermediate, as well as the end, openings in the valve with the opening in the valve casing.

2. A surgical inhaler comprising a tubular valve casing having an opening therein and also having a passage way learhng to a source of anesthetic, a tubular slide valve situated in the said casing one end of which is adapted to close the said passage way and the said valve having an opening through which an anesthetic may pass from the saidv passage Way and also having a plurality of openings which may be moved into alinement with the opening in the said valve casing by movement of the said valve, and rcciprocatory valves in the said slide valve for controlling the passage of gases through the opening in said valve casing.

3. A surgical inhaler con'iprising a tubular valve casing having an opening in one side thereof, one end of the said casing being closed by a detachable member having an opening in communication with a source of anesthetic, the said opening being surrounded by a *alve seat, a tubular slide valve situated in the said tubular casing one end of which is adapted to close the open ing through the said member when in one position and the said valve being provided with an opening through which an anesthetic may enter the chamber in the same and being also provided with a plurality of openings, any one of which may be moved into alinemcnt with the opening in the side of the said valve casing by movement of the said valve, and valves situated in the said slide valve for controlling the passage of gases through the opening in the side of the said alve casing.

71'. A surgical inhaler comprising a tubular valve casing having an opening in one side thereof, the said valve casing bring arranged ior connection with a source of anesthetic or the like. a tubular slide valvc situated in the said casing, adapted to close I i the communication between the saidvalve casing and the connection with said source of anesthetic, said valve being provided with a plurality of openings any adapted to be carried into alinement w th the opening in the side of the valve casing by movement of the said valve, and check- 5. A surgical inhaler comprising a valve casing, having an opening intermediate its ends for communication with a face piece and also having an opening to the open air adjacent to one of its ends, the opposite end of the said valve casing being arranged-for connection with a source of anesthetic or the like, a tubular slide valve situated in the said valve casing and having one of its ends closed for the purpose stated and having openings adjacent to said closed end to permit the passage of an anesthetic or the like thereinto and also having a plurality of openings any one of which is adapted to be carried into alinement with the opening in the side of the said valve casing by movement of the said valve, and automatically actuated valves within the said tubular valve for controlling the direction of the passage of the anesthetic and gases through the opening in the said valve casing and through the said valve.

6. A surgical inhaler comprising a valve casing having means for connecting it to a face piece and also having an opening for forming the side thereof in communication between a face piece and a source of anesthetic or the like, a tubular slide valve situated in the said casing and having a plurality of openings therein any one of which is adapted to be carried into alinement. with the opening in the valve casing by movement of the said valve, internal flanges in the said tubular valve, check valves adapted to be seated against the said flanges for closing,

openings through the same. a rod supported upon the said flanges, which rod supports the said check valves, and means extending one of which is the passage of the therethrough and transversely of the said tubular valve forsupporting the valves in the latter when out of engagement with the said flanges.

7. A surgical inhaler comprising a tubular valve casing having an opening in one side thereof, a tubular slide valve in the said tubular casing. provided with a reduced end portion having openings through its sides to permit the passage of an anesthetic or the like into the said tubular valve from the said valve casing, the end of said slide valve lacing clo ed for the purpose stated and being provided with a plurality of openings an v 1-110 oi which is adapted to l)t carried into cngagonwnt with the opening in the valve casing, means for indicating which of the said valve openmgs is in almement with the opening in the said casing, and means for controlling the passage of an anesthetic and gases through the said openings.

8. A surgical inhaler comprising a tubular valve casing provided with an opening adapted to form communication with a face piece and the said casing having at one end an opening arranged to form communication with a source of anesthetic or the like and having an open air opening near its opposite end, a tubular slide valve situated in thGSfi-ld casing, one end of the said valve being closed and the other end being open,

the closed end of the said valve when in one POSllZlOIl being adapted to close the first mentioned end opening, and the said valve when in its extreme opposite position closing the said open air opening through the said casing, the said valve having a reduced end portion provided with openings for the passage of an anesthetic or the like and also having a plurality of openings any one of which is adapted to be carried into alinement with the first named opening in the valve casin and means for controlling the direction of travel of the gases through the said tubular valve.

9. A surgical inhaler comprising a tubular valve casing having an opening for communication with a face piece, and also having a longitudinal slot in one side thereof which slot is provided at its center with inclined substantially parallel surfaces forming shoulders,-a tubular val"e in the said casing having a plurality of openings any one of which may be carried into alinement with the opening in the valve casing by a movement of the said valve, and a. finger piece extending through the said slot and having connection with the said valve, the said finger piece being adapted to be moved longitudinally in the said slot to move the said valve and the relation of the said finger piece and the said longitudinal slot to the openings in the 'alve and in the said valve casing being such that the position of the finger piece in the said longitudinal slot indicates the positions of the openings in the said valve with respect to the opening in the valve casing.

10. An inhaler comprising a tubular valve casing having an opening for communication with a source of anesthetic and also having an opening for communication with a face piece, for the passage ot' anesthetics and gases a tubular slide valve in said casing for controlling said opening, one end of which is closed and is adapted, when the valve is in one position, to close the first named o iening to prevent the passage of anesthetic into the inhaler, and a plurality of valves carried by said slide valve for the purpose described.

be shiftedinto diiierent positions, and

means disposed longitudinally of the casing for indicating the relative positions of the said slide valve in said casing, and for stopping said valveiin selected positions intermediate of its range of longitudinal movement." l;

12 In mechanism of the class described, the combination with a casing inclosing a chamber having ports leading to air and separate means 'for connecting said chamher with an inhaling mask and with a source of anesthetic, of a membermovable in said chamber for controlling the airports and the connection with the source of anesthetic and having a plurality of ports registerable with the mask connection, and means for controlling the ports therein to direct the inhalation and exhalation through the connection with said source of anesthetic when said member is in one extreme position, to direct inhalation and exhalation through said air ports when in the other. extreme position, and to direct inhalation through said anesthetic connection and exhalation through said air ports when in an intermediate position.

13. In mechanism of the class described, the combination with a casing inclosing a chamber and having separate means for connecting said chamber with an inhaling mask and with a source of anesthetic and having ports respectively leading to said anesthetic connection, mask connection, and the air, of a member movable in said chamber for controlling said ports, and having a plurality of ports registerable withcthe port leading slm other extreme position, and to direct inhalation through said anesthetic conection and exhalation through said air ports when in an intermediate position, and means for moving said member, said casing providing means for positively stopping said member in, positionsto separately register or aline each of its ports with said mask connection.

,14. In mechanism of the 'classdescribed, the combination w th a, casing inclosinga chamber and having separate means for connecting said chamber with an inhaling-mask and with a source of anesthetic and having ports respectively leading to said anesthetic connection, mask connection, and the air, of a member movable in said chamber for controlling said ports, and having a plurality of ports registerablejith the port leading to said mask connection, means for controlling the ports therein to direct the inhalation and exhalation through the anesthetic connection when said member is in one extreme position, to direct inhalation and exhalation through said air port when in the other extreme position, and to direct inhalation through said anesthetic connection and exhalation through said air ports when in anintermediate position, said cas- 'ing having a slot provided intermediate its ends, with suitable abutments, and a finger j piece carried by said movable member and extending through said slot, cooperative to engage said ahutments to hold said movable member in position to register its respective ports with said mask connection.

15. Inmechanism of the class described, the combination with a casing inclosing a chamber and having separate means for connecting said chamber with an inhaling mask and with a source of anesthetic, and having ports respectively leading to the air, to the anesthetic connection, and to the mask connection, a slide-valve in said chamber operative when in one extreme )osition to close said anesthetic port and when in the other extreme position to close said air port, and having a plurality of portsv respectively registerable with the port leading to the maskconnection when in either of its extreme'positions or in an intermediate position, check valves for controllingthe ports in said slide-valve, and operative to direct inhalation and exhalation through the connection with the source of anesthetic when one of the valve ports is in registry with theport leading to said mask connection, to direct inhalation through, said anesthetic connection and exhalation through said air port when another of said valve ports is in registry with the port leading to said mask connection, and to direct inhalation and exhalation through said air port when the other of said valve ports is in registry with the port leading to said mask connection.

16. In mechanism of the class described the combination with a casing inclosing a chamber and having separate means for connecting said chamber with an inhaling mask, and with a source of anesthetic, and having ports respectivelyleading to said anesthetic connection, mask connection. and the air,,a slide-valve movable in said chamber and having means for closing the anesthetic port and air port when in its extreme positions respectively, said slide-valve having' a passageway therethrough, check valves dividing said passage way into separate chambers respectively provided with ports registerable' with the ports leading to the mask connection, one of the ports in .port and to open said air ports, to direct inhalation and exhalation through said air port to the exclusion of said anesthetic,

another of said ports in the slide-valve being registerable with the port in the mask connection when said slide-valve is in a position to close said air ports and to open said anesthetic port, todirect inhalation and exhalation through said anesthetic port, and the other of said ports in said sllde-valve being registerable with the port in said mask connection when said slide-valve is in an intermediate position and the anesthetic port and air ports both open, to direct ininhalation through said anesthetic port and exhalation through said air port.

17. In mechanism of the class described, the combination with a casing inclosing a chamber and having separate means for connecting said chamber with an inhaling mask, and with a source of anesthetic, and having ports respectively leading to said anesthetic connection, mask connection, and the air, and provided with a slot offset intermediate its ends, a slide-valve movable in said chamber and having means for controlling the anesthetic port and air port when in its extreme positions respectively,

said slide valve having a passage way, there through, check valves dividing said passageway into separate chambers respectively provided with ports registerable with the ports leading to the -mask connection, one of the ports in said slide-valve being registerable with the port in the mask eonnection when said slide-valve is in a position to close said anesthetic port and to open 'said air port, to direct inhalation and exhalation through said air port to the exclusion of said anesthetic, another of the ports in said slide-valve being registerable with the port in the mask connection when Y the slide-valve is in a position to close said air ports and to open said anesthetic port, to direct inhalation and exhalation through said anesthetic port, and the other of the ports in said slide-valve being registerable with the port in said mask connection when said slide-valve is in an intermediate position and the anesthetic port and airports both open, to direct inhalation through said anesthetic port and exhalation through said air port, and a finger piece carried by said slide-valve and extending through said slot, engageable with the ends thereof to register the end ports in said slide-valve with the port in said mask conmotion and engageable with the offset edges of said slot to hold the slide-valve in such -.slot and engageable with said shoulders and the ends of the slot to determine the operative positions of said ports.

19. In mechanism of the class described, the combination with a hollow casing having a port, and a longitudinally extended slot provided with shoulders intermediate of its ends, of a slide-valve mounted to reciprocate in said casing and having a pluralityof ports arranged to be separately re istered with the port in said casing, chec valves interposed between the ports in said slide-valve, and means operative to shift said slide-valve in said casing and extending through said slot and engageable with the ends 'of said slot and with said shoulders, to register the ports in said slide-valve with the port in said casing.

' In testimony whereof, we have respectively hereunto signed our names the 30th day of January, A. D.,1913, and the 5th day of February, A. D., 1913.

' ARTHUR W. BROWNE.

FREDERICK L. VVALLAGE. Witnesses as to Arthur W. Browne:

ROBERT C. ANGELL, ALBERT A. SIEVERS. Witnesses as to Frederick L. Wallace:

WILLIAM J. RUssnLL, CLIFTON C. HALLOWELL.

rut 

